Document Detail


Scintigraphic studies on the etiology of Ampulla Cardiomyopathy.
MedLine Citation:
PMID:  18522785     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Although there are many reports on Ampulla Cardiomyopathy, its etiologic mechanisms are not well known. AIM: Etiology of Ampulla Cardiomyopathy was investigated by myocardial scintigraphy with various nuclear tracers. SUBJECTS AND METHODS: In nine patients with Ampulla Cardiomyopathy, myocardial scintigraphy was performed at acute, subacute and chronic phases. Total defect score (TDS) of tallium-201 (Tl) or technetrium-99m sestamibi (MIBI) myocardial perfusion and iodine-123-beta-methyl-p-iodophenyl penta-decanoic acid (BMIPP) scintigraphies was calculated. Cardio-mediastinal ratio (H/M) and washout rate (WR) of early and delayed images of iodine-123-meta-iodobenzylguanidine (MIBG) scintigraphy were also calculated. The patients in whom TDS of myocardial perfusion scintigraphy at acute phase was 0, were classified into group N (n = 5) and those with TDS > or = 1 into group D (n = 4). RESULTS: TDS of BMIPP at acute, subacute and chronic phases was higher in D than in N; 28.8 +/- 10.3 vs. 7.2 4.7 (p = 0.0039), 15.5 +/- 2.1 vs. 1.0 +/- 0.8 (p < 0.0001) and 2.7 +/- 1.2 vs. 0 (p = 0.05), respectively. WR of MIBG at acute phase was also higher in D (50.3 +/- 5.7% vs. 36.6 +/- 10.5%, p = 0.05). H/M (dH/M) on the delayed images and WR at chronic phase were not different between the two groups. H/M (eH/M) on the early images was lower in D. Blood noradrenaLine (ng/ml) at acute phase was higher in D than in N (1.21 +/- 0.55 vs. 0.45 +/- 0.33, p < 0.05). Left ventricular ejection fraction (LVEF) was decreased in both at acute phase but it was lower in D than in N (48.1 +/- 3.7% vs. 69.9 +/- 9.7%, p < 0.05) at subacute phase. CONCLUSION: These findings suggest that the etiology of Ampulla Cardiomyopathy is neurologically stunned myocardium induced by coronary microcirculatory disorder. Due to the significant amount of time that was necessary for normalization of wall motion in the D group, myocardial scintigraphy is believed to be also useful in assessment of severity.
Authors:
Yasuto Uchida; Shuji Nanjo; Shinichiro Fujimoto; Shohei Yamashina; Kenji Wagatsma; Hajime Nakano; Junichi Yamazaki
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of cardiology     Volume:  51     ISSN:  0914-5087     ISO Abbreviation:  J Cardiol     Publication Date:  2008 Apr 
Date Detail:
Created Date:  2008-06-05     Completed Date:  2008-07-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804703     Medline TA:  J Cardiol     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  121-30     Citation Subset:  IM    
Affiliation:
Division of Cardiovascular Medicine, Department of Internal Medicine, Ohmori Hospital, Toho University School of Medicine, Tokyo, Japan. yasutoyasutouchida@s6.dion.ne.jp
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MeSH Terms
Descriptor/Qualifier:
Acute Disease
Aged
Aged, 80 and over
Chronic Disease
Coronary Disease / complications*,  physiopathology
Female
Humans
Male
Microcirculation
Middle Aged
Myocardial Stunning / etiology*,  radionuclide imaging*
Radioisotopes / diagnostic use
Radiopharmaceuticals / diagnostic use
Severity of Illness Index
Chemical
Reg. No./Substance:
0/Radioisotopes; 0/Radiopharmaceuticals

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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